In the 1980's and 90's, the solar car was deemed the future of transportation. Yet, just as quickly as it arrived, the solar car disappeared. But today, as the problems caused by our reliance on fossil fuels have grown, so has a demand for alternative sources of energy for our vehicles. While electric cars are rapidly gaining a larger share of the automotive market, this technology still relies on electricity from a grid often fueled by petroleum or coal. And this is why some companies today are again trying to harness the most powerful energy source we know: the sun.
Scientists have discovered a new asteroid that's been tagging along with Earth for the past 2,000 years. The space rock is called a "quasi-moon," since it's only slightly influenced by the Earth's gravitational pull, but it still makes the journey around the sun much like the earth does.
Earth has pushed past seven out of eight scientifically established safety limits and into “the danger zone,” not just for an overheating planet that's losing its natural areas, but for the well-being of people living on it, according to a new study.
